Knoxville Weather Forecast

    • 66
    • 74

    Rain Showers

    • 49
    • 77

    Chance Rain Showers

    • 45
    • 67

    Partly Sunny

    • 50
    • 69

    Chance Rain Showers

    • 54
    • 73

    Chance Rain Showers

    • 57
    • 80

    Partly Sunny

Today 18 May Knox

Cloudy with a chance of Showers and Thunderstorms. Cooler. Near steady temperature in the lower 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 18 May Knox

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 60 percent.

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Knoxville Temperature Statistics

May Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 7 May, 2026

    32.7 °F

  • Average May

    57 °F

  • Highest 12 May, 2026

    81.3 °F

Climate (2021–Present)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.4 °F
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